The JISP16 potential applied to the nucleon induced deuteron breakup process

Volodymyr Soloviov,Kacper Topolnicki,Yuriy Volkotrub,Jacek Golak,Henryk Witała,Roman Skibiński,A Wrońska,W Przygoda,A Magiera

doi:10.1051/epjconf/201919905019

Volodymyr Soloviov, Kacper Topolnicki + Show 7 more

Open Access

https://doi.org/10.1051/epjconf/201919905019

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Abstract

The JISP16 nucleon-nucleon potential is applied to investigate the nucleon induced deuteron breakup reaction at energies E=13 and 65 MeV. Our study reveals that this force delivers, in general, a qualitatively similar description of the exclusive cross section for the studied reaction to the one based on the standard realistic nucleon-nucleon AV18 interaction. However, in some regions of the phase space the differential cross sections based on the JISP16 and on the AV18 forces differ by more than 100% and 50% at E=13 MeV and E=65 MeV, respectively. Such specific parts of the phase space can be used to fine-tune the JISP16 potential parameters.

Highlights

The JISP16 potential [1] is a model of the nucleon-nucleon (NN) interaction developed within the J-matrix inverse scattering formalism [2]
To study the quality of the cross section description delivered by the JISP16 potential, we compare the JISP16 based predictions with the ones obtained using the standard AV18 potential [10]
The p + d → p + p + n reaction, which is known to be sensitive to the details of the nuclear forces, can be potentially used to fix parameters of the JISP16 interaction

Summary

Introduction

The JISP16 potential [1] is a model of the nucleon-nucleon (NN) interaction developed within the J-matrix inverse scattering formalism [2]. Its free parameters have been fixed by fitting to the NN phase shifts and to the energies of bound and excited states of nuclei up to 16O Such a method of fixing potential parameters was chosen to study many-nucleon systems without the explicit use of many-nucleon interactions. It was deduced that the parameters of the P-wave components of the JISP16 force should be refitted In this contribution we explore the usefulness of the nucleon-deuteron breakup process in this context. Various dynamical and kinematical aspects of the interaction dominate the breakup cross section in different parts of the five-dimensional phase space spanned by five variables mentioned above This allows one for more systematic and detailed studies of the NN interaction, than these available e.g. in the elastic scattering process [6,7,8,9]

Formalism

Results

Conclusions